Cutter for fiber needles.



K. LPEEFIS 6L A. L. CURRIER. ACUTTER FOR FIBER NEEDLES.

APPLICATION FILED AUG.Z8. I9I4. 1,161,151.

Patented Nov. 23, 1915.

3yHEETSSIjIEET I. c (d l WIW-[155555.

i NN

K. J. PEERS 6L A. L.v CURRIER.

CUTTER Foa HEER Names. APPLICATION FILED AUG.28.1914. y 19119154, Patented Nov. 26, 1910.

3 SHEETS-SHEET 2.

K. l. PEERS & A. L. CURRIER. CUTTER FOR FIBER NEEDLES.

APPLICATION FILED AUG.28, 1914. I 1,161,151. Patented Nov. 23, 1915.

3 SHEETS-SHEET 3.

WITJEEEEE;

COLUMBIA PLANOGRAPH C0..wA5H|NnToN. n` c.

mi TATS rari orme.

imsiruin` J. runes, oimos'ron, AND ARTHUR 1.,.oUen1Ea, oimvnwroiv,` MAssAoHUsErrs;

. .sAiD GURRIER Assieivon .ro sAID Prinses.

"Specication of Letters APatent.

Patenteld'Nov. 23,1915.

Applieationled'Aaigust 28, 1914. :Sera1i1\1o.'8.59,133.

To all whom imag concern:

Be it known that we, KDs'rDR J. lnnns, of Boston, in the county ofv Suffolk and lState of .lvlassachusetta a subject .of 'George V, King of vGreat `Britain .and Ireland, .and ARTHUR L. Cineman, of Newton, Ain the county of Middlesex, in saidState, a citizen of .the United States, haveinvented -a new and usefulV Improvement .in Cutters for Fiber Needles, of whichthe ollowingds` a speciication.

The use of liber needles for .talkingmachines is increasing and:as1.each needle loses its lpointrwith one useand .so canfbe used satisiiactorilyfbut once unless'itfis retrimmed, a demand for .cutters .to .trim such `needles has arisen. These needles asis wellknown are triangular in cross section .and are trimmed to .a point in afplane at an angle to their lengthso that the point is la continuation ol' one of the .angular edges.

.The present invention is. an improvement on acutter described in an applicationfor Letters .Patent of .the United States,l Serial No. 809,207 filed'by .thesaid Peers,fDecembers 29,1913. .The shear cutireferred.to-.in`

that application has :been -ounfd {advantageous and the means ofholding-.the needle during the cutting .operation :so that ,lits pointed edge will not be ,jammed has-also been found .to bepractically necessaryfand this present invention relates toimproved means for securing these results together with -other 4features whichgoto .make up a practical cutter which is convenient and effective, and alsolendsitself to'inexpensive construction because its .parts may be made by dies.

vOurinvention will be .understood by reference to the .drawings-.inwhich- Figuresl: and 2 arefront and rearelevations ofaxcutterV embodying our inventioniin its `preferred form.. Figs. Sand 4f are side elevations of the .cutter `takenffrom opposite sides. Figm is a top view of. .the cutter, and Fig. .6.is .a section .online tlf-6 of Fig, .1. Fig. 7 isa vertical section `of .the device. Figs. .Sand 9 are .details of the two .levers on which the l operative parts are mounted. Figs. 10 and .11 are :modiications `of the opening through which the needle isi-ed. Figs. :12 land .13 are modificationsfof the cutting blade, andligs. llll and ..15 show modiicationsfofthefneedle clamp. Y

4The .device comprises two handle levers pivoted together, their l.lower ends being spring-,controlled handles .and `their upper ends carryingthe .operative parts. The handles .of the 'levers aremarkedrland B, re-

sp.ectively,.gand the `plate or upper part or' eachlever whichl carries the working `parts is marked A1 :and .1131, respectively. Each` handle .also carriesan attachinglplatefa, b, whrch interlocks with thenshan-ks which 4connect thelrandlesB and .A .with the `plates B1 .and A2 .Ascrew Ipin `.C .passes `through these .four lparts, namely, .the .Shanks frefer-red tdandthe parts ya-and 'b .to .forma clamp v.together with .an opening .through whichethe `work .is .fed .The work Vsupport is. marked E .and comprisesfa. trough. angular inK cross section .open ateachend .andaopen at v one side, its opposite angle .retaining .the appropriate edgefof `the ;needle,. namely, that which carriesthe tpoint. .This work .support,.it will be. noted,.is .at Y. an` angle..tothe plate A1 and. at ,its *junction 'with l,plate .A1 is an opening e whichvis a projection of .this troughso that .the .needle may pass through the plateand `reach the `cutting blade. dor this purpose .the opening` ispreferably :substantially .the shape of. the. lower `or pointed endzof the needle but-ithas. an elongated. recessfelrin one corneriasand for the,.purposes describedinfthe said application, namely, to prevent the jamming l. of the .needle when engaged .the cutter, zthe `.cutter ,pressing the needle against` theupper side .of .the,.triangularppening, .the other walls Vofthe triangular opening serving to keep the needle from flateral movement rand @the :elongated recessje1 being tElocated torelieve the,pint forming-.edged the needle from pressure. This. `means vis Vpreferably extended into .the trough. Y

"Nile have 'shown .in Figs. 10..and .1.'1 other meansior ,accomplishing this. In Fig .'10, it willfbemofted'that .the .openingfez .is :tours'ided, .the upper sidebeing. at anappropriate angle to receive the corresponding side of the needle which is marked and is shown in cross section, a pin e3 being attached to the plate A1 to retain the needle in proper position. In Fig. 11 a similar construction is shown wherein, however, instead of a pin e3 a tongue e4 is provided, this tongue forming part of a plate A2 which we vprefer to use to form a face for the'plate-A1,

this plate A2 being constructed of hard steel andA being riveted or otherwise suitably attached to the inner face of the plate A1.

To clamp the needle in the support E we provide a lever F pivotally mounted on the outside of the plate A1 (F ig. 1) by a pin or fulcrum f. The lever F has at its upper end a linger f1 provided preferably with a serrated edge on its inner face adapted to be moved toward the supportl E and close the open side thereof. It should be somewhat yielding preferably because its function isl to press the needle into the support adholditnnlyduringtheeuttngopen-` tion, and as the needles vary somewhat in size 1t should have sufficient movement to hold the smallest needle in place. The serrations on theY face of this finger f1 should be such as to hold the needle down against the cutting blade and prevent its being drawn inward by the pulling tendency of the cutting blade. In order to throw this lever F at the proper timer we give to the edge of the plate Z) a cam shape providing it with a recess f1 to receive the hook f3 at the lower end of the lever. It willbe noted from Fig. 1 that when the handles are brought together the lower end of the lever F will be pressed outward and the hook f3 will be thrown lout of the recess f2. Vihen the handles are released, however, the reverse operation will` take place, the edgeof the recess lengaging the hook f1 and drawing the lever back into `place and releasing the needle.

`7e have shown other means of operating the finger f1 in Figs. 14 and 15. In Fig. 14C the lower end of the lever restsupon the edge ofthe plate b which in this case has no recess but is shaped to throw the upper end of the lever into the trough or holder E,v the return movement being caused by a spring f1 attached to the plateA1.

In Fig. 15 the finger is mounted on a yoke frame having two arms f5 which in like manner'areoperated bytheedge of the part 1 In'addition the plate A1 has an overhang- Y' ing lipv G to kform a guide for the plate B1 and't'o hold the plates in facial contact, and it is also provided with a notch a1 to co-act withv the .projection b1 on the plate B1 to limit the cuttingV movement of the parts.

'Ihe lip G also serves as aL stop. to engage a' .projection 1 on Vthe part B1 so as to` limit the expansive movements ofthe springs d1.

order to allow the blade to be removed for sharpening. The blade H is also slotted as at h1 and this slot coperates with a pin It on the part A1. The slot is preferably straight and as the pin h1 moves in the arc of a circle about the fulcrum C it drives the plate upward at the proper time causing it to pass the opening through which the needle projects. Thus the blade makes a shear cut acrossthe end of the needle. This same result may be secured in other ways, for example, as shown in Figs. 12 and 13, where the blades H1, H2 are riveted to the part B1. In Fig. 12 the blade H1 has a curved cutting edge, the curve being eccentric to the movement of the part B1 so that as the parts pass each other the same shear edge is used, the width of the blade and its location being such that as the part B1 swings up to perform the cutting operation it, as it were, pushes the blade upward across the needle.

The projection b2 which serves as a stop with the part Gr also is so located on the plate B1 as normally to lie opposite the opening E through which the needle is fed for cutting and hence it serves as a stop or guide to determine the amount of material. to be cut from the needle.

In practice the needle is pushed into the support until its end reaches this part b1 and immediately upon gripping the handles although this part b1 moves out of the way the finger f1 on the lever F engages the needle so that it will remain in its proper position to be trimmed.

We believe from the above description that the operation of this device will be clearly understood and we also believe that it will be understood that modifications as to the details of this construction may be had without departing from the spirit of this invention as we do not mean to limit ourselves to the exact construction shown.

lhat we claim as our invention is:

1; In a device of the kind described, two handle levers pivoted together, one of said handle levers having a needle support and the other handle lever having a cutting blade, and means operated by the movement of said handle levers and having a movementrelative to said support to coperate with the latter to clamp a needle thereon when the cutting blade is to operate to trim a needle.

2. In a'device'of the kind described, two handle levers pivoted together, one of said handle levers having a needle support and the other handle lever having a cutting blade, and yielding means operated by the movement of said handle levers and adapted to cooperate with said needle support to clamp a needle thereon.

8. ln a device of the kind described, tWo

handle levers pivoted together, one of said handle levers having a needle support and the other handle lever having a cutting blade, and means adaptedto coperate With said needle support to support a needle therein, said means comprising a clamping lever and means operable with the operation of said handle levers to move the end of said clamping lever into said holder.

-1- ln a device of the kind described, two handle levers pivoted together', one of said handle levers having a needle support and the other handle lever having a cutting blade, and means adapted to ccperate With aid needle support to support a needle therein, said means comprising a clamping lever and means operable with the operation of said handle levers to move the end o'l said clamping lever into said holder, and means to Withdraw it therefrom to release the needle.

5. ln a device of the kind described, two handle levers pivoted together, one of said handle levers having a needle support and the other handle lever having a cutting blade, and means adapted to cooperate With said needle support to support a needle therein, said means comprising a clamping lever mounted upon the handle lever carrying said needle support and a cam mounted on the other handle lever and adapted to engage said clamping lever and operate it.

6. In a device of the kind described, tvvo handle levers pivotally connected, a Work support mounted on one of said handle levers and terminating in an opening through said lever through vvhich a needle may project, and a cutter blade mounted on the other handle lever, and means whereby said blade may have a movement across said opening eccentric to the pivot of said handle levers, said means comprising a pivot whereby said blade is connected to one of said handle levers, a slot in said blade and a pin engaging said slot and connected to the other handle lever.

7. In a device of the kind described, tvvo handle levers pivotally connected, one of said handle levers carrying a Work support and the other a cutting blade adapted to cut a needle supported by said Work support, a gage mounted on the blade carrying handle lever normally in register with the Work support, and means carried by said Worksupport-carrying handle lever adapted to engage said gage and limit the movement of said handle levers in one direction.

8. ln a device of the kind described, tWo handle levers pivotally connected, and means for keeping their handle ends normally separated, one of said handle levers carrying a work support and the other a cutter blade and stops mounted on each lever near the outer end thereof, one located to limit the cutting movement of the parts and the other to limit the expansive movement of the springs.

9. In a device of the kind described, tvvo handle levers pivotally connected, one of said handle levers carrying a cutter blade and the other carrying a Work support, said Work support terminating in an opening in its'handle lever, said opening having a Hat side and said cutter blade being located on its handle lever to force the 'flat side of a needle against said flat side of said opening during the cutting operation, and means forming partof said opening to engage another flat side of said needle to hold it against lateral movement during the cutting operation Without engagement of a corner edge thereof.

KESTER J. PEERS. ARTHUR L. CURRIER. Witnesses GEORGE O. G. COALE, M. E. FLAHERTY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

